Omega Pre-owned Speedmaster 3511.50 is a sport chronograph wristwatch with a black dial and self-winding movement, suited for everyday wear and timing tasks. Condition: Used (very good). Ranking: Rank A Used - a few traces of usage, some scratches/dirt can be seen but overall in very good condition; Glass scratches: None; Dial scratches/deterioration: Insignificant; Hand scratches/deterioration: Insignificant; Case scratches: Insignificant; Bezel scratches: Insignificant; Crown scratches: Insignificant; Case back scratches: Insignificant; Bracelet scratches: Insignificant; Maintenance: Polished; Accessories: None. Key attributes: Black | Stainless steel | Self-winding (automatic) movement | Chronograph | Date | Sport style | 39mm case diameter | Black dial | Stainless steel bracelet | Dimensions & fit: Bracelet sized for 16cm / 6.29'' wrist | Composition & care: Stainless steel | Wipe with a soft cloth; avoid strong shocks and magnets; professional servicing recommended for movement maintenance.